Auxiliary refrigerator-door.



i doors.

UNITED STATES PATENT OFFICE.

CHARLES NAEGELEN, OF CINCINNATI, OHIO, ASSIGNOR TO THE CINCINNATI BUTCHERS SUPPLY COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF and C indicates the rail of an over-head -'OHIO. AUXILIARY REFRIGERATOR-DOOR.

1;()46,400 Specification of Letters Patent. i Application filed June 26,1911.

Tov all whom it 1mi/y concern:

I, CHAmme NAEGELEN,

Be it known that States, and residing a citizen of the United at Cincinnati, Hamilton county, State of Ohio, have invented certain new and useY ful Improvements in Auxiliary Refrigerator-Doors; and I do declare the following to be a clear, full, and exact description of the invention, attentionbeing called to the drawing :which accompanies this application and forms a part thereof.

Auxiliary refrigerator 4doors are provided in connection with larger doors which control access to refrigerators, cooling-rooms, cold-storage compartments etc. and-where overhead tracks lare used upon which meatproducts, carcasses etc. are moved throu h the openings controlled by these doors. T e objects while so moved are suspended on trolley-rollers which travel upon these tracks and the auxiliary doors areintended to close openings provided to permit passage of the trolley rollers while the objects susended onthem `pass through the opening Below 'which is controlled by the larger It is desirable for obvious reasons that the-auxiliary doors and the larger doors open and 'close together, so that manipulation for opening and-closing one of the doors, usually the larger one, is suicient to open and to close also the other doors. Various means and devices have been proi" vided for this purposel and this present invention relates to improved means' intended to accomplish the same object.

In the following specification and particularly pointed out in the claim at the end thereof, will be found a full description of my invention, together with its operatlon, parts and construction, which latter is also illustrated in the accompanyingdrawing, in which l Figure 1, illustrates myin'vention in perspectlve view, showing .the auxiliary doors and the larger 'door in open position. Fig. 2, is a horizontal section through the open-4 ing-controlled by the auxiliary doors and as they are shown in Fig. 1. Fig. 3, in a similar view shows these doors closed.

In the drawing, A indicates an opening which permits access to an inclosure which may be a cooling room, o indicates the door for this opening.

B is an object, beef carcass in this case,

trolley-track upon which such objects, while suspended from trolley-rollers o, traveling upon said track,

through opening A. This latter is extended to form a smaller opening E to admit the' track-rail and` to clear the rollers traveling upon the same. Auxiliary doors are provided to close this opening, these doors consisting of two wings F and G, hinged to swing on parallel, vertical axes and meeting, when closed, at the tracklrail where said doors are notched out to clear the rail and to permit them to come closetogether at their free edges. i

The wings are connected to each other, so that if one is positively moved the other one is caused to'move likewise. nection consists of a straight arl-n10 attached to wing connects the free end of this arm to the other wing. wing F and at its other end to aoint on the door casing has a normal ten ency to pull this wing outwardly and into a tion as shown in Figs.` 1 and 2. In oing s o wing Gr is caused to follow for reasons described. 13 isv aprojection on the big door a, so located that 'whenthis door is closed, it contacts with win F and -forces the same into a closed. os1tion as shown in Fig. 3, wing G following it again. This F and of a straight link 11 which may be conveniently moved f This con- A coil-spring 12 attached at one end to osisame projection 13 holds also the auxiliary f doors closed as long as the main door re-f' mains closed.'

14 is a stop provided to limlt the actlon of spring 12 and so located as to arrest `the. 'spring-induced opening movement of the wings before arm 10 onv one of them has moved into an alined and dead-locking position with the link on the other wing.

Having described my invention, as new:

The-combination with a door for a larger opening, of two hingedly lsupported wings which form a closure for a smaller opening above the larger opening, a` straight arm projecting from. the inside o one of these wings and a straight link connecting the free end of this arm with the other w1ng,-a coil-spring connected at one of its ends in a fixed position and at its other end to the wing which carries the arm, imparting thereby to said wing a normal tendency to I claimassume anA open positionand to pull the actuatedwing with a'diieotcontaot so, as to `10 other Wing after it by reason of the link-Con cioee the sume and to hold it so thereafter: nection, a xedly located stop toplimit the ln testimony whereof, I hereunto aixmy opening-'movement of the spring-aotimted signature in the presence .of two Witnessesul Winn` before the arm on it has moved into ,T V 3 an tlined position With the link onV the CBARLES ALGE'LEN other Wing, end a projection on ther door Nitnessesz below the Wings and adapted, when seid l C; SPENGEL, door is being closed., to engage the spring- T. LE'BEAU.

Copies of 'this patent may be obtine. for ve centsy each, by adressing the Commissioner of Patients,

Y t Washington, D. G. I 

